2909868970896 has 160 divisors (see below), whose sum is σ = 8400182353920. Its totient is φ = 964422619776.

The previous prime is 2909868970859. The next prime is 2909868970903. The reversal of 2909868970896 is 6980798689092.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56578825 + ... + 56630231.

It is an arithmetic number, because the mean of its divisors is an integer number (52501139712).

Almost surely, 2^{2909868970896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2909868970896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4200091176960).

2909868970896 is an abundant number, since it is smaller than the sum of its proper divisors (5490313383024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2909868970896 is a wasteful number, since it uses less digits than its factorization.

2909868970896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52170 (or 52158 counting only the distinct ones).

The product of its (nonzero) digits is 1693052928, while the sum is 81.

The spelling of 2909868970896 in words is "two trillion, nine hundred nine billion, eight hundred sixty-eight million, nine hundred seventy thousand, eight hundred ninety-six".